Table 3.

Dietary effects of oxidized beta-carotene (OxBC) on immunoglobulins¹ (IgG and IgM) in sow plasma at gestation, farrowing, and weaning

TRT2	Control									OxBC
T3	Gestation			Farrowing			Weaning			Gestation			Farrowing			Weaning				P-value5
P4	0	1	2+	0	1	2+	0	1	2+	0	1	2+	0	1	2+	0	1	2+	SEM	TRT	T	TRT × T
IgG	134.4	233.6	254.4	101.6	35.2	61.2	115.1	94.9	99.2	49.7	79.6	113.2	86.0	53.6	72.4	86.7	82.1	184.3	45.13	***	**	**
IgM	54.4	47.1	48.9	25.0	22.2	29.8	11.5	13.8	13.5	18.2	17.2	20.7	29.8	27.6	26.2	11.6	17.1	13.9	6.38	**	*	*

¹Samples were diluted to 1:500,000 and reported as ng/mL.

²TRT, dietary treatment.

³ T, time.

⁴ P, parity.

⁵*P < 0.001, **P < 0.05, ***P ≤ 0.10, **** P > 0.05. No farrowing room by treatment interaction was found. There was no significance or tendencies found for parity, dietary treatment × parity, parity × time, or dietary treatment × parity × time.